Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 13

Sanskrit:

ता हेलयामास कपिर्भ्रूक्षेपैर्सम्मुखादिभि: ।दर्शयन् स्वगुदं तासां रामस्य च निरीक्षित: ॥ १३ ॥

ITRANS:

tā helayām āsa kapirbhrū-kṣepair sammukhādibhiḥdarśayan sva-gudaṁ tāsāṁrāmasya ca nirīkṣitaḥ

Translation:

Even as Lord Balarāma looked on, Dvivida insulted the girls by making odd gestures with his eyebrows, coming right in front of them, and showing them his anus.

Purport:

Śrīla Prabhupāda writes: “The gorilla was so rude that even in the presence of Balarāma he began to show the lower part of his body to the women, and sometimes he would come forward to show his teeth while moving his eyebrows.” Śrīla Viśvanātha Cakravartī states that Dvivida would come right up to the women and move about, urinate and so on.